Meridian G92 User manual

Brand: Meridian

Model: G92

Type: User manual

This manual is also suitable for

Product highlights

Ideal heart of a stereo or multichannel

audio/video system

Includes both multichannel

analogue & digital outputs

Drives digital speakers or analogue

amps directly

Plays almost all CD and DVD-Video

format discs

Multiple analogue and

digital inputs

Powerful video processor; HDMI out

at up to 1080p

Digital upsampling/buffering delivers a

spectacular improvement in quality

ROM drive improves error-correction

over ten times

AM/FM RDS tuner or DAB Digital

Radio with FM

G92

DVD Player Controller Tuner

Meridian’s G Series line of high performance

digital and analogue consumer audio

components feature a stylish cabinet design

in traditional black or a sleek silver ﬁnish.

Designed to be either free-standing or rack-

mounted, G Series components build on their

predecessors, the multi-award-winning 500

and our ﬂagship 800 Series, and include

entirely new circuitry developed speciﬁcally

for the G Series.

Multi-layer boards reduce system noise and

improve performance. In products which

include video capabilities, broadcast-quality,

wide-bandwidth video components are

employed for maximum image integrity.

G Series units are easy to use. Where

appropriate, a knob is included to control

volume. The positive-action front-panel

keys are software-deﬁned: their legends are

presented in the vacuum ﬂuorescent display

and change intelligently according to context.

Full installation conﬁguration of many G

Series components is achieved by running

a special setup program on a Windows

computer, connected to the G Series unit via

a serial link, or direct from the front panel.

G Series products also include serial ports

for remote operation and conﬁguration,

along with infra-red sensor input and trigger

capabilities, plus Meridian communications

ports. A comprehensive back-lit learning/

programmable remote is included with

products other than ampliﬁers.

Meridian Audio Limited

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Meridian America Inc.

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The G92 is a DVD player, controller

(preampliﬁer) and tuner, with multichannel

analogue and digital output capability and a

robust slot-loading DVD-ROM drive. As the

heart of a complete stereo or multichannel

audio/video system, the G92 offers an

alternative to the G95 for the user who

already owns multichannel power ampliﬁers

(included in the G95) or wishes to employ

Meridian digital loudspeakers to create a full

digital theatre system.

The G92 plays audio CDs, MP3 CDs,

Video CDs, and DVD-Video including

the DVD side of DualDisc hybrids. It can

decode Dolby Digital, DTS, MPEG, and

MP3 data streams to PCM for stereo, and

in some cases multichannel, playback, and

it can optionally output Dolby Digital, DTS,

and MPEG bitstreams for connection to a

surround controller such as Meridian’s G61

or G68.

The G92 incorporates a two-channel

preampliﬁer with two coax digital inputs,

two optical inputs, and three analogue

inputs. It provides analogue and digital

multichannel and ﬁxed auxiliary digital

stereo outputs. Digital signal processing is

included to upsample (stereo only) decoded

streams, or decode surround bitstreams

from external sources. It also includes a

high-quality FM/AM tuner with RDS/RDBS

(G92 model), or a DAB/FM tuner (G92-

DAB).

In stereo mode, the G92 is designed to

connect directly to a pair of analogue active

speakers, or power ampliﬁers and passive

speakers. Alternatively, it can be connected

to a pair of Meridian DSP Loudspeakers to

create a complete two-channel audio/video

entertainment system.

The G92’s multichannel digital output

allows connection to a surround controller

such as the Meridian G61 or G68.

Alternatively, the digital and/or analogue

multichannel outputs can be used to

create a powerful 5.1 surround system

based on Meridian DSP Loudspeakers or

conventional analogue amps/speakers – or

a combination of the two. Here the G92

really comes into its own: as the heart of a

complete surround system.

The G92 includes a powerful video

processor and scaler which can

simultaneously provide composite

and S-video outputs, plus progressive

component video and up to 1080p on

an HDMI v1.1 output. It provides two

composite, three S-video, and one

interlaced component video input, all of

which can be routed to any of the video

outputs with appropriate scaling.

At the centre of the G92 is a robust, high-

speed computer-style slot-loading DVD-

ROM drive – the best type of drive to use

to ensure accurate data recovery from all

types of disc. The drive normally operates

at standard speed; however, it is capable

of recovering data a great deal faster when

required, enabling it to make more attempts

to recover accurate data from a problem

disc. Thus the drive can perfectly recover

the data from almost any compatible disc.

Unlike other players that use a mechanical

approach to attempt to lower jitter by

minimising drive vibration, the G92 employs

a triple buffering system to minimise jitter,

maximizing HF transparency and sound

stage precision and stability. The result

of this sophisticated approach is that

the players deliver ultra-low jitter, with

sound and picture quality second only to

Meridian’s 800 Reference DVD/CD Player.

The digital electronics as a whole are

driven by a new design of high-stability

clocking system which further reduces jitter

and ensures that the highest level of detail

is recovered from a disc. All digital data is

accurately re-clocked, and multiple power

supplies ensure that digital and analogue

circuitry are kept separate.

The G92 includes a comprehensive

front-panel user interface which allows

access to all the features of the unit. The

player can be set to a standard ‘Type’

which conﬁgures all the required settings

as required for a particular application.

In addition, an on-screen display (OSD)

allows you to conﬁgure speciﬁc settings

individually.

The player employs Flash ROM memory for

the operating system, so software updates

can be downloaded from the Internet and

installed via a PC connected to the serial

port on the rear panel. The serial port also

allows full remote control and conﬁguration

of the unit.

The G92 provides three principal

S/PDIF coax outputs designated L/R,

L/R Surround, and C/LFE. These typically

connect to Meridian processors, or

feed a stereo signal to a pair of DSP

Loudspeakers.

If conﬁgured for MHR SmartLink they,

or the adjacent combined 15-way

D-type connector, carry high-sample

rate encrypted data from DVD discs

for the highest ﬁdelity of decoding and

reproduction. The SmartLink also informs a

connected Meridian processor of the signal

source, so that it can switch processing

modes automatically. An additional S/PDIF

digital output delivers a stereo downmix or

bitstream signal.

The G92 includes a preampliﬁer and

integral radio tuner. The main stereo

analogue preamp output is either ﬁxed,

or variable via the front-panel knob which

controls the Meridian proprietary

digital/analogue volume control – a design

similar to that used in the ﬂagship 800

Series and DSP 8000.

Two tuner options are available: AM/FM

and DAB/FM. The former provides AM (LF/

MF) and FM (VHF stereo Band II) reception

with RDS/RDBS, and is ﬁtted with its own

96kHz, 24-bit A/D stage. Digital signal

processing provides a sophisticated FM

stereo blend/width control which allows

you to minimise noise on a received

signal. There is also a DSP-based low-

pass ﬁlter and a whistle ﬁlter for improved

AM reception. Alternatively, a version is

available with DAB Digital Radio (VHF

Band III and UHF L-Band) and FM. This

option is described in a separate sheet.

G92

DVD Player Controller Tuner

The illustration above shows the G92 at the heart of a compact, all-digital, Meridian-based

stereo DVD system. The Meridian DSP loudspeakers take their feed from the G92’s digital

preamp outputs, with the speaker volume controlled by the G92’s front-panel knob via the

communications link, or via the remote. The G92 will also drive a stereo analogue system, for

example with a G56 or G57 power ampliﬁer and your choice of passive speakers, or active

loudspeakers like the M420 in-wall designs.In addition, the G92 will drive a complete 5.1

system comprising either digital speakers or analogue amps and conventional speakers – or

any combination of the two (see panel opposite). With three stereo analogue inputs and four

stereo digital ins (two optical and two coax), the unit will support a wide selection of inputs, and

when playing a multichannel disc as part of a stereo system, the surround information is expertly

downmixed to stereo.

G92

DVD Player Controller Tuner

The G92 includes upsampling in stereo,

which allows digital ﬁlters to be placed far

beyond the range of human hearing, as

well as offering other audible beneﬁts right

across the audio band, including improved

transient response. All processing is at

48-bit precision. This results in a more

open, transparent sound, tighter bass, and

a generally more ‘musical’ sound overall.

To drive the multichannel analogue outputs,

signals are upsampled to 176.4/192kHz for

digital to analogue conversion – DACs can

offer better performance at higher sampling

rates – and 88.2/96kHz is used for the

digital outputs, all at 24-bit word lengths.

Here again, sending 24 bits at high

sample rates via an S/PDIF link reduces

jitter as compared to the original 44.1kHz,

16-bit signal from a CD, for example. In

addition, high-resolution digital outputs are

encrypted, removing cyclic components

from the data stream and further reducing

jitter.

All these advanced digital processing

features are handled by a powerful DSP

engine delivering an impressive 150MIPS

(million instructions per second).

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Dimensions

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The G92 forms the perfect heart of an analogue or digital surround system, and the latter is

shown here. In fact, the G92 will drive any combination of analogue and digital speakers in a

surround system (though it is advisable to use identical speakers for left and right of each pair).

The analogue outputs are driven by 24-bit DACs that are upsampled to 176.4 or 192 kHz for

maximum ﬁdelity, and the digital outputs offer up to 24-bit, 96 kHz sampling – the highest quality

available today from multichannel digital source material. The output level is controlled by the

front panel knob or via remote.

The G92 supports almost any kind of video display device, whether composite, S-Video,

Component (progressive or interlaced) or even the latest interfaces such as HDMI or DVI.

Different video inputs are converted to all formats, so there is only need for one display

connection.

G92

DVD Player Controller Tuner

G92 DAB rear panel

In addition, the G92 incorporates

digital surround decoding to allow the

multichannel analogue and digital outputs

to be used to drive a 5.1 surround

system directly, based on Meridian

DSP Loudspeakers and/or conventional

analogue amps and speakers.

The built-in surround processing system

decodes 5.1 Dolby Digital or DTS

soundtracks from DVD-Video discs, and

Dolby Digital or DTS data streams fed

into the external digital inputs. It will also

synthesise a full surround image from

2-channel soundtracks on audio CDs or

DVD-Video discs, or from the external

two-channel digital or analogue inputs, by

extracting latent surround information in the

recording.

Several DSP presets are provided to

allow you to choose the type of surround

processing used for different sources. For

5.1 audio formats a Discrete or Cinema

DSP preset is selected automatically,

depending on whether the source is

music or a movie. For two-channel audio

formats the DSP preset can usually be

switched between Triﬁeld (Meridian’s

acclaimed three-speaker stereo decode,

recommended for music), Stereo (uses

just the main left and right speakers

and subwoofer if present), or PLII

(recommended for movies), using the DSP

key on the front panel or MSR+.

On the video side, advanced video circuit

designs, matched phase video ﬁlters, and

a broadcast-quality video encoder are

employed to deliver low-noise images of

outstanding colour depth and resolution.

Separate ultra-low jitter master video and

audio oscillators allow picture and sound to

be independently optimised, ensuring that

the G92 DVD player delivers breathtakingly

clear pictures.

The G92 includes a unique broadcast-

quality, high-resolution video processor/

scaler which combines both Meridian and

Faroudja Video Optimization technology.

This processor can receive composite,

S-video, and interlaced component video,

and convert between the formats, or to the

HDMI (high-density multimedia interface)

standard, to provide a single video output

for all the video sources in your system. A

bypass function allows progressive or high

deﬁnition component video to be routed

directly to the component output only.

The HDMI port also delivers high-resolution

digital audio to the HDMI v1.1 speciﬁcation,

either up to six channels of PCM at up to

24-bit, 96kHz or a 5.1 bitstream, while

broadcast-quality video circuitry delivers

the most advanced, high-quality video

available today.

The HDMI port supports a wide range of

high quality digital video options including

480p, 576p, 720p, 1080i and 1080p

– the same resolution as the best HD

sources. The analogue component output

is available at 480p and 576p.

The video processor includes picture

controls, available via the MSR+ and front-

panel display. For the internal DVD and

external video inputs you can adjust the

the horizontal/vertical picture position. In

addition, the brightness, contrast, colour,

and hue (NTSC) are adjustable on the

video inputs.

The HDMI output can be connected to a

DVI input if the device supports HDCP

copy protection, using a suitable adaptor

cable.

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G92 features a slot-loading DVD-ROM drive

Meridian G92 User manual

Brand: Meridian

Model: G92

Type: User manual

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